Transverse-Momentum and Pseudorapidity Distributions of Charged Hadrons inppCollisions ats=7  TeV

V Khachatryan,O Boeriu,G Kasieczka,F Moortgat,J Varela,P Bunin,M Wang,M M Baarmand,G Karapostoli,Y Onel,I Redondo,S Somalwar,A Krokhotin,P Harris,R Wilken,L Teodorescu,R Hadjiiska,S Esen,J Descamps,D J Hofman,F L Navarria,D Sabes,M Biasotto,G Broccolo,A Gribushin,A Nayak,Y Tschudi,V Chetluru,A Saha,S Cihangir,L Apanasevich,A Martelli,P Avery,W J Spalding,J Bauer,J Weng,N Van Remortel,M Tripathi,M Swartz,X T Huang,H El Mamouni,D Leslie,M A Borgia,M Simon,R A Ofierzynski,D Reeder,D Martschei,J Alcaraz Maestre,Y Ivanov,T Virdee,W T Chen,M Schröder,M Bellato,S Tkaczyk,H Jung,J L Faure,M M Obertino,S Guragain,S Paktinat Mehdiabadi,T Khurshid,F Lacroix,C E Gerber,A Geiser,R Frazier,A Perieanu,A Kapusi,D J A Cockerill,D M Morse,F Würthwein,D Trocino,A Khukhunaishvili,D Riley,J Efron,D C Miner,G Roselli,S Lowette,M Arneodo,V D Elvira,T Aliev,M Pierini,Y Kubota,H Malbouisson,D H Miller,F Odorici,J Wickens,S Petrushanko,A Venturi,I Ahmed,D Barney,V Gavrilov,T Ma,J A Coarasa Perez,M Della Negra,B Diamond,J.-L Agram,T Klimkovich,R Wilkinson,N Shumeiko,S Metson,M Sani,C Neu,S P Singh,N Ilina,A M Rossi,S Tavernier,D M Newbold,O Prokofyev,C Plager,M Menichelli,A Giassi,A Fanfani,F Duru,W Funk,R M Harris,M Djordjevic,Y Maravin,E Appelt,Y H Chang,M Hashemi,O Grachov,C De Oliveira Martins,S Kailas,L M Villaseñor-Cendejas,Y Gotra,T Bose,S Braibant-Giacomelli,F Palmonari,E Tuovinen,G Franzoni,P T Cox,A Oulianov,Y Gao,G Maron,H Held,D Bodin,F Fassi,W Busza,L Barbone,W D Zeuner,S Elgammal,E Petrakou,K Maeshima,G Polese,K Hatakeyama,S Bitioukov,W A Khan,S Maselli,M Titov,B Cox,L Fiore,J Lykken,A Solano,W Lin,R G Kellogg,K H Hoffmann,M Aldaya Martin,T Boccali,J Robles,J Tuominiemi,P Markowitz,B Gobbo,A Heister,E Luiggi Lopez,M Cutajar,K Rossato,C Park,S Baffioni,C Farrell,M Pieri,J P Cumalat,T R Fernandez Perez Tomei,H R Hoorani,R Volpe,J Vaughan,A T Laasanen,S Walsh,A Linn,O Gutsche,V Miccio,H Pi,M Squires,T Schum,A Bonato,I Golutvin,C Viviani,H Mermerkaya,I Manolakos,S H Chuang,S Abdullin,Y Kim,V Ciulli,A K Sanchez,S Wimpenny,A Graziano,V Golovtsov,I Katkov,S I Cooper,N Redaelli,A Nardulli,D Petyt,M Zeinali,D Futyan,J Freeman,E Kuznetsova,R Carlin,R Remington,V Veeraraghavan,O Kaya,G De Lentdecker,M Boutemeur,Y Roh,G Bolla,P Klabbers,P Torre,F Meijers,I Puljak,S Goy Lopez,J H Kim,M Dubinin,J D’Hondt,S Gninenko,G Nicolas Kaufman,V M Ghete,K V Tsang,T Bergauer,E Di Marco,K M Ecklund,A Zatzerklyaniy,V Grishin,L Lusito,F Matorras,J G Branson,A Papageorgiou,L Lloret Iglesias,D Stuart,A S Yoon,R Gomez-Reino Garrido,S Honc,J Maes,L Vanelderen,J De Favereau De Jeneret,K Kaadze,D Daeuwel,K Kadija,P Kalavase,M Chadwick,Zero Kim,L Orsini,T Mccauley,H Kim,K Klein,P Cushman,A Drozdetskiy,A J Bell,M Giffels,V Gaultney,M Deniz,P Jarry,R Horisberger,A Satpathy,F A Dias,I Belotelov,I K Furic,H B Rhee,J Flix,D Gerbaudo,J Smith,L Demortier,U Behrens,G Wrochna,U Langenegger,A Lanev,C Rovelli,Z L Trocsanyi,D Lelas,A Panagiotou,S Hänsel,A Volodko,M R Adams,A Beretvas,N Rompotis,R Vidal,M Velasco,J Mousa,K Piotrzkowski,A Givernaud,M Buehler,D Boumediene,W De Boer,A Campbell,M Kirsanov,P Ronchese,K Ueno,G I Veres,C Jorda,F Borcherding,V Radicci,R Lipton,K Lassila-Perini,C Jeong,E A Wenger,U Gebbert,A Mussgiller,I R Tomalin,E Sexton-Kennedy,F De Guio,Y Hsiung,A Tricomi,V Bhatnagar,P Paolucci,K Nirunpong,F Nowak,S C Tonwar,A K Mohanty,A Nowack,M Johnson,P Musella,K Ozdemir,E Widl,R Carroll,C Schäfer,F J Ronga,H Reithler,C Florez,J Haas,M Albrow,F Fanzago,V O’Dell,Y Choi,D Pedrini,C Mesropian,S Banerjee,M Cardaci,D Evans,C Charlot,M Demarteau,T Whyntie,D Polic,V Krychkine,K Sung,S V Rusakov,A Perrotta,C Foudas,M Sowa,O Bondu,A Ershov,M Vergili,G Gomez Ceballos,M Mannelli,T Kamon,S Chang,C Prescott,F Glege,R K Shivpuri,V Stolin,H Vogel,J Zang,K Ranjan,R Harr,D Konstantinov,A Yagil,N Amapane,G Cerizza,S Nahn,H Xiao,L A T Bauerdick,E Halkiadakis,M Zakaria,R Wallny,H Kluge,T Rommerskirchen,A Kayis Topaksu,D Vishnevskiy,R Wolf,L Wehrli,J G Shiu,J Han,I Iashvili,R Rougny,G Boudoul,E Gülmez,G Hanson,P Piroué,D Pagano,N Nishu,A F Garfinkel,J Leonard,S Lacaprara,P Levchenko,D Mason,S Maruyama,R Fereos,N Akchurin,L Caminada,D Stickland,D Lomidze,M Serin,M Kirn,N Varelas,C Diez Pardos,A Heikkinen,V Palichik,O Hindrichs,M Narain,D Pellett,N Heracleous,C H Shepherd-Themistocleous,J Goh,L Mucibello,S Sen,L Gutay,H Schettler,L Rebane,C Kleinwort,F.-P Schilling,M Guchait,N Marinelli,J G Acosta,R Hall-Wilton,M A Reyes-Santos,J Fay,A Ostapchuk,D Liko,P Kurt,N Pastrone,V Pavlunin,M Karim,K Yi,T Kelly,M Bluj,A Kubik,D Marlow,A Elliott-Peisert,Y Mao,A Gresele,P Noli,A Pfeiffer,L Ceard,K Y Kao,P Rumerio,D Silvers,D Bourilkov,C Bardak,V Kaftanov,I Segoni,A Besson,S Lynch,M Herndon,L Perera,W Dominik,J E Kim,J Chen,A Korytov,W Van Doninck,P Kokkas,D Engh,C Wissing,P Wittich,A Gaddi,A David,J Haupt,A Everett,R Marco,A De Benedetti,F Palla,N Darmenov,J Letts,K A Hahn,Y Kuessel,J Temple,F Thyssen,E Tuominen,J Hays,J Tucker,S Ozturk,I Bloch,J M Vizan Garcia,R Ryutin,R Loveless,G Dirkes,M Bergholz,N Parashar,S Bianco,G S F Stephans,I Mikulec,J Seixas,M Chiorboli,L Guiducci,K Kovitanggoon,F Yumiceva,A T Meneguzzo,V Cuplov,J M Kohli,A Ivanov,C Brew,L Lyons,M Murray,L Gray,G Petrucciani,A Bornheim,I Papadopoulos,S Schael,M Ruspa,D M Raymond,A Cattai,U Nauenberg,T Rodrigo,A Guneratne Bryer,A Knutsson,S Ragazzi,N Cartiglia,D Lanske,P Kreuzer,A Gurrola,E Marinova,D Krofcheck,X Shi,K Freudenreich,M Deliomeroglu,H Gerwig,M Dragicevic,A Tsirou,A Pashenkov,E Norbeck,F Pandolfi,P Jindal,S Rappoccio,F J M Geurts,T Peiffer,D Hidas,M Vazquez Acosta,F Marinho,P Verrecchia,M Kirakosyan,C Albajar,M Hildreth,J Berryhill,J W Gary,L Tourtchanovitch,S A Schmitz,F R Cavallo,T Miceli,K Gunthoti,A Zarubin,M Stoye,C K Mackay,K S Lee,V Innocente,S Albergo,W Adam,P G Ferreira Parracho,T Caebergs,T Aziz,E Gallo,M Lethuillier,L Kramer,E Conte,M Diemoz,A M Guler,R Frühwirth,A Santoro,S Frosali,R Redjimi,I Yu,A Tapper,R Yohay,A Petrilli,P Tropea,N Zaganidis,M Strang,C 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Gasparini,U Goerlach,W Ko,F Hartmann,H Kalakhety,S Klimenko,D Benedetti,J Keller,A Attikis,F Meier,H Liu,S Troshin,A Sparrow,R Pordes,M Paganoni,M Duda,G M Chen,L Litov,M H Liu,M Bachtis,P Van Mechelen,M Cepeda,S Shrestha,S Das,J Olsen,C N Nguyen,J Wagner-Kuhr,S R Wagner,C Regenfus,T Tuuva,A Macpherson,S Gowdy,A Hektor,G Williams,I Vorobiev,I Altsybeev,C Riccardi,M Erdmann,E Cano,J Frangenheim,Y W Chang,J S Werner,D Troendle,K Theofilatos,T Geralis,A Luthra,G Daskalakis,J Draeger,B Huckvale,R R Betts,J Alexander,A Jafari,J Duarte Campderros,S Bansal,C Dozen,Z Demir,P Sellers,S Mueller,N Leonardo,A Colaleo,S Girgis,G Iles,H Rohringer,A Fahim,A Kamenev,C C Wang,E Gurpinar,A T Serban,R Erbacher,V Genchev,J Whitmore,S My,I Fisk,P Baillon,M Hollingsworth,J Caudron,L S Durkin,S Wakefield,C R Newsom,G Tonelli,N Tyurin,M I Josa,Y Mikami,R Cavanaugh,A Avetisyan,P Biallass,W Bender,S Malvezzi,U Berzano,T Frueboes,A Lath,A O M Iorio,W Johns,F Chlebana,S A Koay,M Feindt,A Toropin,D Cussans,A Marinov,A Starodumov,V Azzolini,M Schmitt,S Vavilov,S Gollapinni,S L Zang,A Vilela Pereira,H Geenen,E Calvo,L Sulak,I Villella,J Ballin,J Thompson,B Betchart,L Antonelli,J Merz,J Zablocki,G Brona,F Torres Da Silva De Araujo,G Codispoti,M D’Alfonso,P Robmann,M Pimiä,K Lannon,F Ligabue,L Kreczko,J Harvey,S Linn,R Schöfbeck,R.-S Lu,S F Novaes,I Vankov,J N Butler,N Krasnikov,S Piperov,N Neumeister,M Raidal,G Gökbulut,Y Musienko,G P Di Giovanni,T Medvedeva,M Zeyrek,H W K Cheung,J Rander,H Seo,D Mesa,J Conway,M E Pol,S Chauhan,S Carrillo Moreno,G Rolandi,O Actis,S Buontempo,R Trentadue,D Demir,D Toback,M Özbek,X Janssen,C Mariotti,K Rose,M Renz,R Jussen,M Kadastik,W Erdmann,T Danielson,J Damgov,R Stringer,Y M Tzeng,S Nuzzo,D Schinzel,S Blyweert,S Song,N Sen,R Vasquez Sierra,S Khalatian,G Giurgiu,P Elmer,V Patras,A Smoron,J B Singh,M Nespolo,Y Ma,M C Fouz,D Tsirigkas,N K Mondal,D Gigi,C Civinini,R Nandi,M E Dinardo,J Hauk,F Blekman,G Cappello,S Stoynev,P Van Hove,S Obraztsov,J Wetzel,M Klute,W Waltenberger,P Negri,H Nguyen,D Eckstein,P Bartalini,P Janot,V Halyo,R Ralich,J Bernardini,W Bertl,P Verdier,C Schwick,J Härkönen,A Montanari,A Sharma,C Lourenço,B Caponeri,U E Surat,S Tourneur,P Lariccia,M Anderson,S Kang,O Oberst,G Landsberg,S König,W Kiesenhofer,L Wilke,H C Kaestli,J Steggemann,D Menasce,C Vander Velde,D Colling,L Malgeri,R Schmidt,W Hopkins,N Demaria,R Rossin,D Soares,A Zhokin,B Hong,S Troitsky,J Sammet,K Kousouris,J Babb,A Sabellek,G A Alves,T Rohe,G Sguazzoni,J.-P Merlo,M Wayne,W.-S Hou,J Thomsen,S Marcellini,S Beauceron,S Xie,E Laird,M Chen,L Wendland,K Sudhakar,R Kelley,I M Anghel,H Rykaczewski,P Spagnolo,K Banzuzi,I Kravchenko,S Won,B Pavlov,P Lecoq,M Choi,A Lucaroni,L K Gibbons,K Borras,C Veelken,R Paramatti,N Saoulidou,F A Triantis,N V Tran,P Killewald,P Lecomte,P Tan,A Hunt,G Flucke,D Nguyen,Th Müller,D R Claes,K Sogut,J Butt,C Bernet,B W Kennedy,A Ferrando,I Shreyber,R Clare,J Ziegler,S K Park,S Sala,A Hahn,J Lazo-Flores,R Beuselinck,J Strauss,M 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Hagopian,L Servoli,H Park,K S Sim,M De Gruttola,F Santanastasio,A Moeller,B De La Cruz,M Barrett,F Fedele,N Wickramage,N Manna,D Treille,V Mossolov,D Teyssier,C Roland,O Militaru,J G Smith,D Montanino,A Sytine,C Hartl,S C Eno,W Haj Ahmad,I Smirnov,A Dimitrov,K Sumorok,G Kukartsev,A Nappi,I Volobouev,M B Tonjes,B Dahmes,N Mohr,D Green,J Rohlf,V Chiochia,S M Silva Do Amaral,P Baesso,C A Carrillo Montoya,T Ferguson,P Merkel,S Costantini,V Adler,J Gilmore,B C Choudhary,V Zhukova,E Butz,P Eerola,F Cossutti,M Searle,D H Moon,J Warchol,S Costa,D Baumgartel,E Mccliment,D Tsiakkouri,A Sill,M J Ryan,J Pivarski,S Sekmen,T J Kim,A Melo,A Raspereza,T Christiansen,P Azzurri,A Pozdnyakov,T Punz,P Sharp,M Ignatenko,O Pooth,J Mnich,S Cittolin,F M Stober,W Behrenhoff,R Rahmat,P Lawson,J Y Kim,Z Zinonos,S Ahuja,I Azhgirey,S J Qian,S Shmatov,M Weinberg,F Ratnikov,G Zumerle,E Boos,P Schleper,A Nikitenko,T Signal,E Daubie,D Abbaneo,D Dobur,D Volyanskyy,I Vila,G H Hammad,K Arisaka,D Loukas,U Joshi,L Agostino,A Schmidt,U Baur,J Gruschke,M Heinrich,H Topakli,M Goncharov,J Eugster,K F Johnson,M Kazana,A Stahl,G Apollinari,H Bakhshiansohi,J Wang,A Hinzmann,P Sheldon,V Monaco,G Schott,P Giacomelli,J P Chou,I.-A Melzer-Pellmann,C Maguire,J G Bian,P Vitulo,E Torassa,M Grothe,S Liang,E Longo,L Fanò,A Triossi,J J Brooke,R Bellan,P A Razis,L Mundim,F Ferri,L Perchalla,P Miné,S Choi,D Giordano,A Dominguez,A Santocchia,P Moisenz,J.-C Fontaine,C Seez,J H Wu,S Y Jun,C Dragoiu,R K Choudhury,E Dusinberre,M W Arenton,A Zuranski,M Krammer,A Honma,M Ahmad,N Chanon,S Colafranceschi,D Hits,I J Cabrillo,M Abbrescia,F Fabbri,A Khan,V J Smith,B Alver,J Swanson,G Iaselli,S Gascon,P G Verdini,M Meschini,B Scurlock,C Milstène,R Granier De Cassagnac,Y S Chung,G Hall,J Fulcher,M Lebourgeois,S Taroni,L Martini,M Grassi,K Bloom,Y Sirois,K Gabathuler,L Uvarov,L Sarycheva,L Romero,G Davies,E De La Cruz Burelo,M Chamizo Llatas,B Tali,H S Chen,B Kim,D Gelé,E Friis,L Mirabito,V Oguri,L K Saini,C Markou,C Lundstedt,T Lindén,H Teng,P Arce,M N Bakirci,A Nart,Y J Lei,K Nawrocki,S Dugad,S Slabospitsky,J Suarez Gonzalez,W J Womersley,S W Lin,C Mavrommatis,M Marienfeld,V Smirnov,F Stöckli,A Palma,S Sengupta,D Bortoletto,A Bhatti,J Dolen,M Bontenackels,J Russ,L Lista,M Hoch,A Uzunian,J Gronberg,G Majumder,S Lehti,I C Park,J Hollar,Y Tu,D Wang,P Mcbride,P Chang,R Rusack,M Zeise,C Nicolaou,D Renker,A H Ball,G Cerminara,E Gottschalk,C Broutin,B Kreis,D Lopes Pegna,P D Luckey,A Parenti,C Autermann,O Sengul,L Scodellaro,E M Da Costa,M Balazs,A Aranyi,S Stoykova,K Matchev,R P Smith,M Kaya,R Eusebi,L Uplegger,J R Patterson,D Majumder,D Sillou,D W Jang,T Lomtadze,T Aumeyr,A Rizzi,M Galanti,V Khotilovich,M Janulis,D Uzun,R Wigmans,R Cousins,A Thea,H Castilla Valdez,V Sharma,C Hackstein,L Sala,C Biino,S Rahatlou,B Ille,Z Hatherell,Y Yang,J Hrubec,O Charaf,C Ceron,C Newman-Holmes,D Favart,S Simon,V E Bazterra,P Everaerts,S B Beri,G Anagnostou,P R Dudero,A Flossdorf,J Hammer,P Mane,G Cirino,S Dutta,P Sonnek,B Stieger,L Borrello,V Kim,X Wang,S Vanini,B Curé,C Fabjan,H Weber,H Arfaei,M De Mattia,S Sharma,A Kharchilava,R Kroeger,P Van Mulders,P Cole,J Ellison,D Ungaro,V Petrov,K Shin,D D’Enterria,G Walzel,B Hegner,C K Lae,E Auffray,O Atramentov,A Snigirev,E A Albayrak,J Olzem,L Silvestris,J Marco,D Orbaker,S Ward,E Castro,J Garberson,S Reucroft,I Lokhtin,T Kypreos,N Bondar,P Schlein,C Diez Gonzalez,J Morales,Z Gecse,D Sprenger,A Hervé,M Kasemann,T Sabonis,G Quast,A Kraan,K Stenson,M Paulini,R Gokieli,L Levchuk,I Diaz Merino,P Fabbricatore,M Spiropulu,A Mestvirishvili,E Shabalina,O Devroede,G Flügge,M Felcini,A Sznajder,N Almeida,A Taurok,J A Coughlan,Z Zhang,D Acosta,G N Kim,A York,C Eskew,P Iaydjiev,M Mulders,J Jackson,A Benaglia,E B Ziebarth,M Gataullin,D H Kim,A C Benvenuti,C Thiebaux,N Eggert,F Golf,R Sever,M Z Mehta,R Khatiwada,L Quertenmont,M Thomas,P Vanlaer,K Kotov,S Oliveros,A Volkov,S K Kataria,Yu Andreev,D Kovalskyi,R Vilar Cortabitarte,W Wu,C Tully,A Rose,V Roinishvili,Y Weng,T Speer,Y Fu,J Richman,W Andrews,B Klima,J Speck,R M Brown,V Maroussov,Q Ingram,J Sturdy,C Saout,C Ferro,D Dammann,A Pompili,S C Kao,S Qazi,M Dyulendarova,G Hu,S V Gleyzer,J Piedra Gomez,B Marangelli,A Sakharov,J A Bakken,G B Mohanty,A Cabrera,C Palmer,E Twedt,M Pernicka,G Kozlov,H K Wöhri,J C Sanabria,N Beliy,E Olaiya,E Eşkut ,Song Guo ,E Alagöz ,M Besançon ,Н Голубев ,Y Chào ,A Kopecký ,J Königsberg ,A Calderón ,C Tuvé ,J Królikowski ,Edgar Casimiro Linares ,S Bilmiş ,S Perriès ,A Çakır ,V Brigljević ,V Lemaı̂tre ,J Y C Tam ,K Höepfner ,F Pauß ,P Marage ,G Kaußen ,M S Rudolph ,J Bellinger ,J Sánchez ,M S Witherell ,L Felď ,S Özkorucuklu ,L Boldizsár ,R Démina ,M Dias ,K Öcalan ,L Cremaldi ,H Flächer ,J M Hernández ,D J Summers ,A F Osório Oliveros ,T Cheng ,F Nessi‐Tedaldi ,B Millán Mejías ,I González Caballero ,O González López ,A Rácz ,J Williams ,Z Yang ,B Ujvári ,А В Виноградов ,T Schöerner-Sadenius ,Benjamin Charles Radburn-Smith ,A Özpineci ,В Качанов ,M H.g Souza ,R López-Fernández ,V Reković ,M Déjardin ,Alan S Go ,S Başeğmez ,F A Teischinger ,Л Дімітров ,A García-Bellido ,M E Mattson ,J Fernández Menéndez ,B Wysłouch ,Ali O Ayhan ,A Rýd ,S Czellár ,D Maletić ,J Andreä ,P Milenović ,L Dobrzyński ,D R Wardrope ,L Fields ,J Puzović ,D Ferenček ,M Ataç ,T Maënpaä ,P Garcı́a-Abia ,В Жуков ,A López ,F Özok ,J Pálinkás ,H J Simonis ,K Krajczár ,B Akgün ,D Ćutts ,H Méndez ,Daniel John Karmgard ,N Godinović ,A.s Clough ,G Pásżtor ,Ž Antunović ,O Buchmüller ,T Kurča ,M Ćwiok ,A Ruiz-Jimeno ,M Zieliński ,M Sobron Sañudo ,A Adıgüzel ,G Mäggi ,S Argirò ,James Lamb ,K Buńkowski ,B Işıldak ,G Martı́nez ,Thomas Schwarz ,P J Bell ,G Miní ,Pedro Ribeiro ,R Pleština ,D De Jesus Damião ,Alberto Sánchez Hernández ,Alberto Andres Ocampo Rios ,N Sönmez ,K Cankoçak ,J Malclès ,N Beaupère ,P Adžić ,Á László ,M C Sawley ,I P J Shipsey ,E García-Solis ,Z Szillási ,G P Siroli ,D Kotliński ,Y J Lee ,J Milošević ,S Đurić ,I Hoş ,В Сулимов ,W Białas ,R T D’agnolo ,В Е Кузнецов ,M Pioppí ,Hans Hoffmann ,M Grünewald ,F Siklér ,Drew Baden ,D Kçira ,Andreas Oehler ,Р Тенчини ,M Nikolić ,D Horváth ,V Veszprémi ,Kristjan Kannike ,M Calderón De La Barca Sánchez ,P Maksimović ,D V Bandurin ,N Béni ,Eric Wayne Vaandering ,Jiahui Wei ,Özgür Şahin ,M Fernández ,A C Mignerey ,John Michael Marraffino ,B K Heltsley ,D Blöch ,G Gómez ,C Martínez Rivero ,Arda Halu ,C Hajdú ,S Çerçi ,J Molnár ,I Dumanoğlu ,Arun Kumar ,Α Μάρκου ,Matthias Kirsch ,M A Mahmoud ,Chia‐Ming Kuo ,S A Tupputi ,M Aguilar-Benı́tez ,Sandhya Jain ,Biao Zhu ,M Dželalija

doi:10.1103/physrevlett.105.022002

Abstract

Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at sqrt(s) = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit-pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity, dN(charged)/d(eta), for |eta| < 0.5, of 5.78 +/- 0.01 (stat) +/- 0.23 (syst) for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from sqrt(s) = 0.9 to 7 TeV is 66.1% +/- 1.0% (stat) +/- 4.2% (syst). The mean transverse momentum is measured to be 0.545 +/- 0.005 (stat) +/- 0.015 (syst) GeV/c. The results are compared with similar measurements at lower energies.

Highlights

The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity dNch=djjj
Measured in The numerical values of the data presented in this Letter can be found in the HEPDATA database [22]
The combined result for the central pseudorapidity density, from three mutually consistent methods of measurement, is dNch=djjj

Summary

Number of events

68 512 61 551 55 113 55 104 55 100 where two or more minimum-bias collisions occurred in the same bunch crossing, is estimated to be less than 0.3%. (DD) events in the selected data sample, estimated with PYTHIA and PHOJET, ahriegh6e.8r %tha(n5.a8t%p)ffisffi a1⁄4nd05:9.0a%nd(32..83%6 T),erVes[p3e].cWtivietlhyP, YsoTmHIeAw, hthaet overall correction for the selection efficiency of NSD processes and for the fraction of SD events remaining in the data sample lowers the measured charged-particle multiplicity by 6% compared with the uncorrected distribution. 0.5, 1.5, and 5% of all charged particles are estimated to be produced below these pT values, respectively, and these fractions were corrected for. [8] was chosen to determine the corrections, because it reproduces the dNch=d and charged-particle multiplicity distributions, as well as other control distributions at 7 TeV, better than other available tuning parameter sets. Results.—For the measurement of the dNch=dpT distribution, charged-particle tracks with pT in excess of 0:1 GeV=c were used in 12 different jj bins, from 0 to 2.4. The pT spectrum of charged hadrons, 1=ð2pTÞd2Nch=d dpT, measured in the range jj < 2:4, is shown in Fig. 2 for data

Tsallis fit

Findings

CMS NSD